Feed and delivery attachment for printing-presses.



S. W. CORTISSOZ. FEED AND DELIVERY ATTAUHMENT FOR PRINTING PRESSES.

APPLICATION FILED AUG. 9, 1910.

, 1,061,526. Patented May 13,1913.

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FEED AND DELIVERY ATTACHMENT FOR PRINTING-'PRESSES.

Specification of Letters Patent.

Application filed August 9, 1910. Serial No. 576,345.

To all whom, 1' 6 may concern:

Be it known that I, SAMUEL W. Con'rissoz, a citizen of the United States, residing in Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements in Feed and Delivery Attachments for Printing- -Presscs, of which the following is a specification.

This invention relates to mechanism for automatically feeding sheets of paper to and removing the same from printing presses, and is particularly designed for use in'conneetion with job presses. I

The principal object of the present invention is to utilize an automatically operating feed table for presenting sheets of paper to a suction device for delivery to a conveyer from which the said sheets of paper are transferred to the platen of the printing press, from which platen the pr1nted sheets are automatically removed and deposited upon a. receivin table.

A further object of the present invention is to provide means for controlling the operation of these various parts, whereby suction Within the feed and delivery mechanism is established and interrupted at predetermined intervals.

A further object of the present invention is to provide means for automatically establishing and interrupting at predetermined intervals pressure beneath the feed table.

A still further object of the present inmention is to provide automatically operating sheet adjusting means for the platen of the printing press.

A still further object of the present invention resides in' the assembling of feed and delivery mechanism upon a movable frame work, whereby said frame may be moved into juxtaposition to a printing press for cooperation therewith and removed therefrom at will.

Other objects of the invention relate to general details of construction and arrangement of parts as will hereinafter more fully appear.

With these and other objects in view the invention consists of certain novel features of construction and combinations of parts, which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings, Figure 1,

is n view in elevation partly sectioned of a job printing press having coupled therewith the improved feeding and delivering mechanism, constituting the subject matter oi the-present invention. .Fig. 2, is a fragmentary view drawn to an enlarged scale of one of the valves for establishing and interrupting suction within the feed and delivery mechanism, Fig. 3, is a top or plan view'of the platen of the riuting press and illustrating the sheet at justing means of the invention, and Fig. 4, is a fragmentary view in elevation illustrating a slightly modified form of sheet delivery mechanism.

In the drawing and referring more partirularly to the right-hand side of Fig. 1, there is disclosed an ordinary job printing press 1, having a platen 2, and its complemental grippers 3, Working in the well understood manner. Journaled in the frame of the press 1, is a gear wheel 4, meshing with a gear wheel 5, which gear in addition to accomplishing its usual functions in the operation of the printing press constitutes the working element for operating the feed and delivery devices of the present invention.

in practice should ithe desired to use the pressin the shop for small jobs, the mechanism about to bedescribcd is not connected with the press. Htm'ever, should a large amount of printing he desired to he run oil, the feed and delivery devices of the present invention are wheeled into proper position and attached to the printing press, whereby sheets of paper are autonnitically delivered to and removed from the platen of the press.

The following description now has reference to the left-hand portion of Fig. 1. Suitably mounted upon rollers (5, is a framework which may consist of side pieces 7, and 8, bolted or otherwise secured together as at 9. Between these side pieces 7, and 8, are located the feed and delivery devices. For feeding sheets of paper. or other like material use is made of a suitably. supportedbox like structure constituting a feed table 10, mounted for movement through which is a plunger 11, which works within a cylinder .12. The plunger 11, is operated by pneumatic or hydraulic ressure from a source of supply- 13, which in the resent instance is shown as bein a cylin or for the supply of air. From t pipe 14., which leads to plunger 11, and a pi the top of the feed tab a point beneath the Je 15, which leads to e 10, for a purpose LU e cylinder 13,'is a Patented May 13,1913. i

he presently described. Carried by the top of the feed table 10, is a pivotally arranged spring controlled device 16,0ne end'of which for delivery to the printing press, the end a,

of the device 16, drops sufficiently to operate the valve 19, for the admission of air heneath the plunger 11, whereupon the said plunger 11, raises the pile of sheets to the height occupied before the removal of the topmost sheet. This movement of the plungar 11, operating against the end a, of the device 16, closes the valve 19. Located slightly above the feed table 10, are rolls 20, operating an endless band 21, said hand being adapted to receive sheets out paper from o pile 17, and convey them to a point designed adjacent the platen 2, of a printing press.

' A. description will now be given of a feedin device for lifting sheets from the feed ts is 1G, to the conveyor 21- Fulcrumed as 1 at 222, is an arm 23, pivotally supporting at ts top it cross-bar 24, one end otwhich is equipped with a suction device 25, and the: opposite end of which is provided with o roller 26, see Fig. 2, which travels in a slot 28, in the side piece 8. Motion imparted to the arm 23, by virtue of a com 29, in the disk 30, motion being imported to the disk' 30. from the disk 31, by efconnecting link meet from the gear wheel 33, end link 34:, the gear Wheel 33, in turn meshing with the gear Wheel 5, of, the printing press. As the arm 23, is operated by the com 29, the cross. arm 2%, 1S guidedfby the slot 28, to lower.

the suction device 25, into a position upon the top sheet of the pile 17, on the table 1O.

Just prior to its contact with said sheet, suction will he established through the suction device 25 by apparatus about to be described. In this connection, it may be remarked that the pipe 15, blowing air received from the cylinder beneath the uppermost sheet of the pile 1?, in order that said sheets may not stic r together; The uppermost sheet of the pile 17, will be conveyed by the suction device 25, ii'iihc return movement of the {111'11 24:, to a point in olineineut with the rolls 2O, end the roller 7.), whereupon suction will be interrupted the sheet of paper is drown between said rolls to the conveyor 21. Suitablysupported between the side pieces '2, and 8, is a suction pump or the like 35, connecting which and the suction device 25, of the arm 24, is a tube 3%, provided with a.

". valve 37. The valve 37, s provided with ripeness a, toppet arm 38, adopted to engage pins 39 and i hich are located udgscent the respective ends of the slot 28, and in the path posited uponthe conveyor 21, travels silonggg until it reaches the stop 41. fit this point a, suction device 12, carried by the cross urine-3, of it generally L-shuped srni 4rd, tulcrumed as at 45, and operated by the cam 46 in the gear wheel 33, engages said sheet'oi pcper and deposits the sonic upon. the platen 2,

n of the printing press, it being understood. that the slot 46*, guides said arm 4:3, dur.

ing thisniovemcnt. The suction device 4:2, and the suction pump 35, are connected by a tube d7, equipped with a valve i8, having a tappet arm 49, for contacting withpins 50, and 51, for establishing and interrupting suction as hcreinhefore described. In order to properly position the she stout paper thus delivered to the platen 2, of the printing press, the platen is provided with s bellows 52, connected with which as by tubing 53, are pneumatic plungershi. As the lsten '2, moves into position forprinting in the well understood manner one of the grippers ate upon and properly position a sheet of 5' user? As the platen 2 returns to normal P l l 9 position, the third suction device 55, takes the printed sheet and transfers the sameto e receiving table 56. In this connection, it'mely ion .3, in folding, pressesthe bellows 52, therebyl. 1 j causing the pneumatic plungers 54%, to oper- 32, the disk 31, in turn receiv ng its move- 1 he remarked that the suction arm 56 which in turn is carried by and operated by an arm 57, is fulcrumed as at 58, and is operated by a cam 59, of the disk 31. The arm 56, in turn is guided by a slot 60. Connecting the suction device 55, and the suction pump 35, is a tube (31, equipped with a valve 62, end a tuppet arm 68. The tiippet arm 63, by contacting with the pins 64, and 65,'estabdishes and interrupts suction through the device 55. The construction and operation of the arms 23, 57, end i i, are similar and their movements are so timed us-to work collectively and continuously in the feeding and delivering operation. The side pieces/Z,

and 8, may be provided with lugs 66, which 'Inuy he bolted or otherwise secured to lugs 67, carried by the printing press.

It is thougl'ltthat the shove description. sufiiciently describes the invention without resorting to further description of the operation of the apparatus. in. lieu of using the suction device 42, upon thearm 43, use may be made of a hook-like device 68, pivoted as at 69, to said arm 43. Pivotally connecting the hook-like device 69, and a pivoted tappet arm 70, is a link 71, whereby when the tappet arm engages the pin 50, or 51, hereinbefore described, the said hook 68, will engage or be disengaged from a sheet of aper.

ile the above description has been restricted to the operation of a device for feed-.

ing and delivering sheets of paper, obviarticles to be fed, means for supplying pressure beneath said table for elevating the same vertically, a horizontally arranged endless conveyer, a reciprocating arm equipped with a suction device for transfer ring one at a time said articles from said tableto the conveyer, a pneumatic device for relatively se arating said articles prior to transfer,valveii means responding to the removal of an article from the table for causing the admission of pressure beneath the table to elevate it a predetermined distance, means for reciprocating said arm and means actuated by the reciprocating arm for establishing and interrupting suction throu h said suction device.

2. Kpparatus of the class recited comprising a table constructed -to be automatically lifted containing sheets of paper to be fed,

an endless conveyer, a reciprocating arm equlpped with a suction devlce for transferring one at a time said sheets of paper from the table to the conveyer, means responding to the removal of a sheet of paper from the table for lifting the same a predetermined distance, a reciprocating arm equipped with a suction device for transferring said sheets of paper from the c'onveyer to the platen of a printing press, a reciprocating arm carrying a suction device for delivering the print-- ed sheets, means for reciprocating said arms and means actuated by the reciprocating arms for establishing and interrupting suction through said device.

3. Apparatus of the class recited compris-- ing a table equipped with a plun er, said ta lo containing sheets of paper to e fed, a cylinder through which the plunger works, means for sup lying pressure within the cylinder, an em less conveyer, a reciprocating arm equipped with a suction device for transferring one at a time said sheets of paper from the table to the conveyer, means responding to the removal of a sheet of paper from the table for causing the admission of pressure within the cylinder, a reciprocating arm equipped with a suction device for removing the sheets from the endless conveyer, means for reciprocating said arms and means actuated by'the reciprocating arms for establishing and interrupting suction through said devices.

4. In an attachment for printing presses, the combination of a portable structure, traction wheels therefor, a feed table constructed to be automatically lifted containing a stack of paper an endless conveyer, a reciprocating arm equipped with a suction devlce for transferring one at a time said sheets of paper from the table to the conveyer, a second reciprocating arm equipped with a suction device for transferring sheets of paper from the conveyer to the platen of the printing press, a third reciprocating arm equipped with a suction device for removing the printed sheets from said platen, means for reciprocatingsaid arms, and means actuated by the reciprocating arms for establishing and interrupting suction through said devices.

5. In combination a printing press ineluding its complemental platen and grippers, pneumatic sheet adjusting means operatively mounted upon said platen said means being operated by said platen grippers, a reciprocating arm equipped with a suction device for delivering sheets of paper to said platen, a reciprocating arm equipped with a suction device for removing the printed sheets from said platen, means carried by the press parts for operating said platen and grippers and said reciprocating arms and means actuated by said reciprocating arms for establishing and interrupting suction through said devices.

In testimony whereof I have hereunto signed my name.

SAMUEL W. CORTISSOZ.

\Vitnesscs:

VILLIAM J. JAoKsoN, Acnns E. Cnsnnr. 

